Heater.



, A. L. LEONARD.

1 HEATER.

' v C APPLIIOATION. FILED 00121. 1907.' 899,546, Patented Sept. 29,1908;

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ALEXANDER LEWIS LEONARD, OF COLUMBUS, GEORGIA.

HEATER.

Specification of Letters Patent.

Patented Sept. 29, 1908.

Application filed October 1, 1907. Serial No. 395,401.

To all whom it may concern- Be it known that .I, ALEXANDER L. LEON- ARD,of Columbus, in the county of Muscogee and State of Georgia, haveinvented certain new and useful Improvements in Heaters; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same. My invention relates toimprovements in heating and cooking devices and more particularly tosuch as are adapted for use in cooperation with gas, oil and gasolenestoves, one object of the invention being to provide means to insure theretention and adequate circulation of hot air within an oven, furnace orother form of heating device.

A further object is to provide means whereby the interior extent of anoven or heating device can be maintained at a uniform temperature ofhigh degree with the consumption of a minimum amount of fuel. With theseobjects in view, the invention consists in certain novel features ofconstruction and combinations and arrangements of parts as hereinafterset forth and pointed out in the claims.

In the accompanying drawings: Figure 1 is a perspective view, partlybroken away, illustrating my improvements; Fig. 2 is a longitudinalsectional view, and Fig. 3 is a transverse sectional view.

In the drawing, I have illustrated my invention as applied to a portableoven, such as usually constructed of sheet metal and adapted to beplaced upon a stove employing liquid or gaseous fuel. It is apparenthowever that my improvements are equally useful with a stationary ovenor with a furnace or heating drum,vregardless of the. material of whichthe same may be constructed.

1 represents a portable oven provided interiorly with racks 2 supportedin any suitable manner.

The bottom 3 of the heating device is provided with a hole 4. For thepurpose of my invention, this hole is located near one of the walls ofthe device, preferably one of the end.

walls. A hood or deflector 5 is located Within the device and placedupon the bottom thereof in such manner as to project partially over thehole 4,preferably about three-fourths way over said hole. The hood ordeflector 5 is so constructed that its front end will be more elevatedabove the bottom 3, adjacent to the end wall of the oven near which thehood is disposed, than at the opposite end of said hood, thus making thetop of the hood inclined. I prefer to make the front end of the hood ordeflector about three ing 8 which is much smaller then the opening 7.

or over a burner, that the hole 4 will be directly over a hot locatingthis hole and the hood over the same, near one end of the oven and byproviding a large opening at the end of the hood near the end wall ofthe oven and a smaller opening at the opposite end of the hood, theheated air from the stove or burner will pass through the larger openingof the hood and enter the interior of the oven or heater, therebycreating a suction within the same and causing the air to pass under thehood,

'such air entering the hood through the smaller opening thereof. In thisway, I am enabled to insure an eifectualcirculation of air throughoutall portions of the oven or heater; heating and reheating the air andmaintaining a uniform temperature in all parts of the oven or heater,with the use of a minimum amount of fuel.

Having fully described my invention, what I claim as new and desire tosecure by Letters Patent is:

1. The combination with a chamber to be heated, said chamber having ahole in its bot- The device will be so placed upon a stove plate orflame, and by-so tom, at one side of its center, of a hood or deflectorprojecting over said opening and provided with diametrically oppositeopenings varying in size and both communicating with the interior ofsaid chamber.

2. The combination with a chamber to be heated, said chamber having ahole in its bottom at one side of its center, of a hood or deflectorprojectin partially over said hole and provided with iametricallyopposite openings varying in size and both communicating with theinterior of said chamber.

3. The combination with a chamber to be heated, said chamber having ahole in its bottom at one side of its center, of a hood higher at oneend than at the other and having an opening at each end, the opening atthe higher end being larger than the opening at the opposite end of thehood, said higher end of the hood terminating over the hole in thebottom of the heating chamber.

4. The combination with a chamber to be heated, said chamber providedwith a hole in its bottom near one Wall of the same, of a hood disposedpartially over said hole, said hood having an opening adjacent to saidwall of the chamber and also having a smaller opening diametricallyopposite the first mentioned opening both of said openings communicatingwith the interior of said chamber.

5. The combination With a chamber to be heated, said chamber having ahole in its bottom near one Wall thereof, of a hood disposed partiallyover said hole and having greater height at one end than at the other,said hood having a comparatively large opening at the I higher endthereof and a small opening at the opposite end, and having an inclinedtop. 20;;

6. The combination with a chamber to be heated, provided with a hole inits bottom, of a deflecting hood situated over said hole, said hoodprovided with an outlet leading toward one side of said chamber and withan. inlet leading from the opposite side of said chamber.

7. The combination with a chamber to be heated provided in its bottomwith a hole, of a hood situated over said. hole, said hood having anoutlet opening at one side and a smaller inlet opening at the oppositeside, both of said openings connnunicating with the interior of saidchamber.

In testimony whereof I have signed this specification in the presence oftwo subscribing Witnesses.

ALEXANDER LEWIS LEONARD.

Witnesses:

OLIVE R. RUssELL, Tnos. G. KING.

